**"About 70% of those who stutter have a family history of stuttering"** [**https://www.stuttering.co.nz/news/is-stuttering-genetic/#:\~:text=About%2070%25%20of%20those%20who,the%20other%20doesn't.%E2%80%9D**](https://www.stuttering.co.nz/news/is-stuttering-genetic/#:~:text=About%2070%25%20of%20those%20who,the%20other%20doesn't.%E2%80%9D)